Crystallographic similarity between the lath martensite and lower bainite in medium-carbon

Crystallographic similarity between the lath martensite and lower bainite in medium-carbon

alloy steels

LIU Jiangwen;LUO Chengping;WU Dongxiao

【期刊名称】《自然科学进展（英文版）》 【年(卷),期】2005(015)003

【摘要】Progress in the crystallography of lath martensitic and lower bainitic transformations is briefly reviewed, followed by a presentation of the experimentally measured crystallographic characteristics of both lath martensite and lower bainite formed in mediumcarbon steels containing Si, Mn and Mo. It is found that the bainite plates relate to each other by a relative rotation of 54.7°or 60°about the normal to their common close-packed planes {110} b, which ensures a pseudo- {112}b twin relationship between two adjacent plates,and that all bainite variants formed in a single packet keep a unique G-T orientation relationship with the austenite matrix. These two types of OR of lower bainite are similar to that of the lath martensite, respectively. Furthermore, the measured habit planes of both the lower bainite and lath martensite are all {335} f type, which can verify the crystallographic similarity between the lath martensite and lower bainite. 【总页数】7页(273-279)

【关键词】lath martensite;lower bainite;crystallography;TEM

【作者】LIU Jiangwen;LUO Chengping;WU Dongxiao

【作者单位】College of Mechanical Engineering, South China University of Technology, Guangzhou 510641, China;College of Mechanical Engineering, South China University of Technology, Guangzhou 510641, China;College of Mechanical Engineering, South China University of Technology, Guangzhou 510641, China 【正文语种】中文 【中图分类】N3 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_progress-natural-sciencematerials-international_thesis/020121174333.html 【相关文献】

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